And one more thing I saw: There are two tone fields in the memory structure. It seems that the FT1900 keeps the CTCSS/DCS for transmit and for receive separately, with the receive tone in the first field, and the send tone in the latter. In Reading you don’t see the problem, but when writing and trying to use – it lucks the send tone frequency (or  there is one that remains in the memory).

I believe this should be corrected in the code, i.e., more fields in the channel tables…

Ran